(declare-fun a () Bool)
(declare-fun b () Bool)
(declare-fun c () Int)
(declare-fun d () Bool)
(declare-fun e () Bool)
(declare-fun f () Bool)
(assert (= (not (= a (not (= b f)))) d (not (= c 0)) a (= d e) b (not (= f e))))
(check-sat)
